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SPI: designware: pci: Switch over to MSI interrupts
Some devices support MSI interrupts. Let's at least try to use them in platforms that provide MSI capability. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Link: https://lore.kernel.org/r/20191001081405.764161-1-felipe.balbi@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
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16c3e05803
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1 changed files with 11 additions and 2 deletions
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@ -57,13 +57,18 @@ static int spi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
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/* Get basic io resource and map it */
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dws->paddr = pci_resource_start(pdev, pci_bar);
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pci_set_master(pdev);
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ret = pcim_iomap_regions(pdev, 1 << pci_bar, pci_name(pdev));
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if (ret)
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return ret;
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ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_ALL_TYPES);
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if (ret < 0)
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return ret;
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dws->regs = pcim_iomap_table(pdev)[pci_bar];
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dws->irq = pdev->irq;
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dws->irq = pci_irq_vector(pdev, 0);
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/*
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* Specific handling for platforms, like dma setup,
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@ -80,12 +85,15 @@ static int spi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
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return ret;
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}
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} else {
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pci_free_irq_vectors(pdev);
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return -ENODEV;
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}
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ret = dw_spi_add_host(&pdev->dev, dws);
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if (ret)
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if (ret) {
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pci_free_irq_vectors(pdev);
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return ret;
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}
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/* PCI hook and SPI hook use the same drv data */
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pci_set_drvdata(pdev, dws);
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@ -101,6 +109,7 @@ static void spi_pci_remove(struct pci_dev *pdev)
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struct dw_spi *dws = pci_get_drvdata(pdev);
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dw_spi_remove_host(dws);
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pci_free_irq_vectors(pdev);
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}
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#ifdef CONFIG_PM_SLEEP
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